參數(shù)資料
型號: HD74LVC245
廠商: Hitachi,Ltd.
英文描述: Octal Bidirectional Transceivers with 3-state Outputs
中文描述: 八路雙向收發(fā)器具有三態(tài)輸出
文件頁數(shù): 6/9頁
文件大小: 51K
代理商: HD74LVC245
HD74LVC245A
6
Test Circuit
V
CC
S
A0
OPEN
*1
See
under table
GND
C =
50 pF
OE
T / R
B0
Pulse
Generator
Z
out
= 50
Input
S1
500
Output
V
CC
450
50 Scope
S2
Symbol
S2
t / t
t / t
t / t
PHL
OPEN
GND
6 V
HZ
LZ
OPEN
GND
2
×
Vcc
Vcc=2.7V,
3.3
±
0.3V
Vcc=5.0
±
0.5V
Note:
1.
C
L
includes probe and jig capacitance.
Waveforms – 1
t
PLH
t
PHL
V
OH
V
OL
Input
10 %
GND
90 %
V
ref
t
r
t
f
90 %
10 %
In phase output
V
IH
V
ref
V
ref
V
ref
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